openFrameworks – ページ 54 – プログラミング de 落描き

2025年5月11日

Smile.

[ Video ]

[ About ]
にこちゃんまーく。

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	float frame_num;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

float frame_num;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetColor(255);

	ofSetLineWidth(1);
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	if (ofGetFrameNum() % 50 < 25) {

		this->frame_num += 3.6;
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	float radius = 60;
	for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) {

		for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) {

			glm::vec3 location;
			location = glm::vec3(x, y, 0);

			ofPushMatrix();
			ofTranslate(location);
			ofRotate(45);

			for (int draw_radius = radius; draw_radius >= 0; draw_radius -= 30) {

				int random_deg = ofRandom(360);
				random_deg = (random_deg / 90) * 90 + 45;
				int speed = ofRandom(1, 4);
				auto deg_start = random_deg + this->frame_num * speed;
				auto deg_len = 180;
				auto deg_end = deg_start + deg_len;

				ofNoFill();
				ofBeginShape();
				for (int deg = deg_start; deg <= deg_end; deg += 1) {

					glm::vec2 location = glm::vec2(draw_radius * 0.5 * cos(deg * DEG_TO_RAD), draw_radius * 0.5 * sin(deg * DEG_TO_RAD));
					ofVertex(location);
				}
				ofEndShape(draw_radius == radius - 30);

				if (draw_radius == radius - 30) {

					ofFill();

					ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 225) * DEG_TO_RAD),
						draw_radius * 0.5 * sin((deg_start + 225) * DEG_TO_RAD)), 3);

					ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 315) * DEG_TO_RAD),
						draw_radius * 0.5 * sin((deg_start + 315) * DEG_TO_RAD)), 3);
				}
			}

			ofPopMatrix();
		}
	}

	/*
	int start = 100;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetColor(255);

ofSetLineWidth(1);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 50 < 25) {

this->frame_num += 3.6;

}

//--------------------------------------------------------------

void ofApp::draw() {

float radius = 60;

for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) {

for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) {

glm::vec3 location;

location = glm::vec3(x, y, 0);

ofPushMatrix();

ofTranslate(location);

ofRotate(45);

for (int draw_radius = radius; draw_radius >= 0; draw_radius -= 30) {

int random_deg = ofRandom(360);

random_deg = (random_deg / 90) * 90 + 45;

int speed = ofRandom(1, 4);

auto deg_start = random_deg + this->frame_num * speed;

auto deg_len = 180;

auto deg_end = deg_start + deg_len;

ofNoFill();

ofBeginShape();

for (int deg = deg_start; deg <= deg_end; deg += 1) {

glm::vec2 location = glm::vec2(draw_radius * 0.5 * cos(deg * DEG_TO_RAD), draw_radius * 0.5 * sin(deg * DEG_TO_RAD));

ofVertex(location);

}

ofEndShape(draw_radius == radius - 30);

if (draw_radius == radius - 30) {

ofFill();

ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 225) * DEG_TO_RAD),

draw_radius * 0.5 * sin((deg_start + 225) * DEG_TO_RAD)), 3);

ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 315) * DEG_TO_RAD),

draw_radius * 0.5 * sin((deg_start + 315) * DEG_TO_RAD)), 3);

}

ofPopMatrix();

}

int start = 100;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250511

2025年5月10日

Incomplete net.

[ Video ]

[ About ]
不完全な網。

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(0);

	ofNoFill();
	ofSetLineWidth(2);
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	float radius = 60;
	for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) {

		for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) {

			glm::vec3 location;
			location = glm::vec3(x, y, 0);

			ofPushMatrix();
			ofTranslate(location);
			ofRotate(45);

			for (int draw_radius = radius; draw_radius >= radius; draw_radius -= 8) {

				auto deg_start = ofRandom(360) + ofGetFrameNum() * 1.44;
				auto deg_len = 180;
				auto deg_end = deg_start + deg_len;

				ofBeginShape();
				for (int deg = deg_start; deg <= deg_end; deg += 1) {

					int param = deg % 90;

					glm::vec2 location;
					if (param == 0) {

						location = glm::vec2(draw_radius * cos(deg * DEG_TO_RAD), draw_radius * sin(deg * DEG_TO_RAD));
					}
					else {

						int p1 = deg / 90;
						int p2 = p1 + 1;

						auto p1_deg = p1 * 90;
						auto p2_deg = p2 * 90;

						auto source = glm::vec2(draw_radius * cos(p1_deg * DEG_TO_RAD), draw_radius * sin(p1_deg * DEG_TO_RAD));
						auto target = glm::vec2(draw_radius * cos(p2_deg * DEG_TO_RAD), draw_radius * sin(p2_deg * DEG_TO_RAD));

						location = source + ((target - source) / 90 * param);
					}

					ofVertex(location);
				}
				ofEndShape(false);
			}

			ofPopMatrix();
		}
	}

	/*
	int start = 50;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(0);

ofNoFill();

ofSetLineWidth(2);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

float radius = 60;

for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) {

for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) {

glm::vec3 location;

location = glm::vec3(x, y, 0);

ofPushMatrix();

ofTranslate(location);

ofRotate(45);

for (int draw_radius = radius; draw_radius >= radius; draw_radius -= 8) {

auto deg_start = ofRandom(360) + ofGetFrameNum() * 1.44;

auto deg_len = 180;

auto deg_end = deg_start + deg_len;

ofBeginShape();

for (int deg = deg_start; deg <= deg_end; deg += 1) {

int param = deg % 90;

glm::vec2 location;

if (param == 0) {

location = glm::vec2(draw_radius * cos(deg * DEG_TO_RAD), draw_radius * sin(deg * DEG_TO_RAD));

}

else {

int p1 = deg / 90;

int p2 = p1 + 1;

auto p1_deg = p1 * 90;

auto p2_deg = p2 * 90;

auto source = glm::vec2(draw_radius * cos(p1_deg * DEG_TO_RAD), draw_radius * sin(p1_deg * DEG_TO_RAD));

auto target = glm::vec2(draw_radius * cos(p2_deg * DEG_TO_RAD), draw_radius * sin(p2_deg * DEG_TO_RAD));

location = source + ((target - source) / 90 * param);

}

ofVertex(location);

}

ofEndShape(false);

}

ofPopMatrix();

}

int start = 50;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250510

2025年5月9日2025年5月9日

Crooked lines.

[ Video ]

[ About ]
曲がる線.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	ofMesh face, frame;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

//--------------------------------------------------------------
void ofApp::update() {

	this->face.clear();
	this->frame.clear();

	int span = 1;
	int len = 100;

	int z = len + span * 1.5;

	float angle;
	glm::highp_mat4 rotation, twist;
	for (auto i = 0; i < 12; i++) {

		ofColor face_color, line_color;
		face_color.setHsb(ofMap(i, 0, 12, 0, 255), 200, 255, 64);
		line_color.setHsb(ofMap(i, 0, 12, 0, 255), 200, 255);

		for (auto x = 0; x <= len * 0.05; x += span) {

			for (auto y = 0; y <= len * 48; y += span) {

				angle = PI * 0.01 * i;
				rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

				auto index = this->face.getNumVertices();
				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

				for (auto& vertex : vertices) {

					auto noise_value = ofNoise(i * 1000, vertex.y * 0.0005 + ofGetFrameNum() * 0.0025);
					auto twist_rad = ofMap(noise_value, 0, 1, PI * -6, PI * 6);
					twist = glm::rotate(glm::mat4(), twist_rad, glm::vec3(0, 1, 0));

					vertex = glm::vec4(vertex, 0) * twist;
				}

				this->face.addVertices(vertices);

				this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
				this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

				this->face.addColor(face_color);
				this->face.addColor(face_color);
				this->face.addColor(face_color);
				this->face.addColor(face_color);

				if (x == 0) {

					this->frame.addVertex(vertices[0]);
					this->frame.addVertex(vertices[3]);

					this->frame.addColor(line_color);
					this->frame.addColor(line_color);

					this->frame.addIndex(this->frame.getNumVertices() - 1);
					this->frame.addIndex(this->frame.getNumVertices() - 2);
				}

				if (x >= len * 0.05) {

					this->frame.addVertex(vertices[1]);
					this->frame.addVertex(vertices[2]);

					this->frame.addColor(line_color);
					this->frame.addColor(line_color);

					this->frame.addIndex(this->frame.getNumVertices() - 1);
					this->frame.addIndex(this->frame.getNumVertices() - 2);
				}
			}
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateX(90);
	ofTranslate(0, -1200, 0);
	
	this->frame.drawWireframe();
	this->face.draw();

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 300;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

//--------------------------------------------------------------

void ofApp::update() {

this->face.clear();

this->frame.clear();

int span = 1;

int len = 100;

int z = len + span * 1.5;

float angle;

glm::highp_mat4 rotation, twist;

for (auto i = 0; i < 12; i++) {

ofColor face_color, line_color;

face_color.setHsb(ofMap(i, 0, 12, 0, 255), 200, 255, 64);

line_color.setHsb(ofMap(i, 0, 12, 0, 255), 200, 255);

for (auto x = 0; x <= len * 0.05; x += span) {

for (auto y = 0; y <= len * 48; y += span) {

angle = PI * 0.01 * i;

rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

for (auto& vertex : vertices) {

auto noise_value = ofNoise(i * 1000, vertex.y * 0.0005 + ofGetFrameNum() * 0.0025);

auto twist_rad = ofMap(noise_value, 0, 1, PI * -6, PI * 6);

twist = glm::rotate(glm::mat4(), twist_rad, glm::vec3(0, 1, 0));

vertex = glm::vec4(vertex, 0) * twist;

}

this->face.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->face.addColor(face_color);

if (x == 0) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[3]);

this->frame.addColor(line_color);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

if (x >= len * 0.05) {

this->frame.addVertex(vertices[1]);

this->frame.addVertex(vertices[2]);

this->frame.addColor(line_color);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofTranslate(0, -1200, 0);

this->frame.drawWireframe();

this->face.draw();

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 300;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250509

2025年10月
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